Magnon-exciton proximity coupling at a van der Waals heterointerface
نویسندگان
چکیده
We report on an optically probed ferromagnetic resonance experiment which elucidates the magnon-exciton coupling at interface between a magnetic thin film and atomically semiconductor. Our approach allies long-lived magnons hosted in of yttrium iron garnet (YIG) to strongly bound excitons flake transition metal dichalcogenide, ${\mathrm{MoSe}}_{2}$. The induce dynamical valley Zeeman effect ruled by interfacial exchange interactions. This nascent class hybrid system suggests new opportunities for information transduction microwave optical regions.
منابع مشابه
The van der Waals interaction
The interaction between charged particles via the Coulomb interaction is one of the most important features in physics and is familiar to any student of the subject. The way in which electrons and protons bind to form the hydrogen atom is also well known and is a staple of any quantum mechanics course. However, less familiar is the interaction between such bound systems at separation R, which i...
متن کاملDynamic van der Waals theory.
We present a dynamic van der Waals theory starting with entropy and energy functional with gradient contributions. The resultant hydrodynamic equations contain the stress arising from the density gradient. It provides a general scheme of two-phase hydrodynamics involving the gas-liquid transition in nonuniform temperature. Some complex hydrodynamic processes with evaporation and condensation ar...
متن کاملUltrafast charge separation and indirect exciton formation in a MoS2-MoSe2 van der Waals heterostructure.
We observe subpicosecond charge separation and formation of indirect excitons a van der Waals heterostructure formed by molybdenum disulfide and molybdenum diselenide monolayers. The sample is fabricated by manually stacking monolayer MoS2 and MoSe2 flakes prepared by mechanical exfoliation. Photoluminescence measurements confirm the formation of an effective heterojunction. In the transient ab...
متن کاملCavitation inception of a van der Waals fluid at a sack-wall obstacle Cavitation inception of a van der Waals fluid at a sack-wall obstacle
Cavitation in a liquid moving past a constraint is numerically investigated by means of a free-energy lattice Boltzmann simulation based on the van der Waals equation of state. The fluid is streamed past an obstacle and, depending on the pressure drop between inlet and outlet, vapor formation underneath the corner of the sack-wall is observed. The circumstances of cavitation formation are inves...
متن کاملCorrection to "charge transfer excitons at van der Waals interfaces".
The van der Waals interfaces of molecular donor/acceptor or graphene-like two-dimensional (2D) semiconductors are central to concepts and emerging technologies of light-electricity interconversion. Examples include, among others, solar cells, photodetectors, and light emitting diodes. A salient feature in both types of van der Waals interfaces is the poorly screened Coulomb potential that can g...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.105.l121403